The most common and most likely answer to this crossword clue is the 16 letter word OFF-THE-SHOULDER
I've seen this crossword clue in The Times
O
F
F
-
T
H
E
-
S
H
O
U
L
D
E
R
Buddy explains!
The straight part
We know that "somewhat revealing" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case somewhat revealing = off-the-shoulder.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does OFF-THE-SHOULDER mean?
OFF-THE-SHOULDER adjective- (of a garment) not covering the shoulders.